Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 5 - Test - Page 275: 8b



Work Step by Step

Using Pythagorean's Theorem... $a^{2}+b^{2}=c^{2}$ Substitute in known lengths... $11^{2}+8^{2}=15^{2}$ Simplify... $121+64=225$ $185\ne225$ Since the leg lengths (squared) do not equal the hypotenuse (squared) then the triangle is not a right triangle.
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